Table of contents

Introduction

This section describes all types of input and output signals available with iam, including their characteristics and when necessary including connection examples. Location and pinouts of the connectors carrying the signals are documented in Mechanic and Connector and cable description.

Power supply

DC power input

iam is designed for a power supply input range of 24 V ±10%. The power consumption depends on the utilisation of the main system parts: Image sensor, FPGA, ARM cores. The power consumption is typically less than 13 W. A suitable power supply for iam is available from NET.

For designing a custom power supply see information about the power input connector in Connector and cable description.

Power over Ethernet (PoE)

Be aware in case of using a prototype camera:

If the camera serial number has an X or Z in the 9th digit (e.g. 14A2GEBAX2042013) Power over Ethernet is not supported even though the camera will be detected as a PoE device by a PoE injector!
See also Known Issues - Prototype Cameras .

iam can be also powered using the Power over Ethernet option. The cameras are compatible with the Power over Ethernet standard, versions IEEE 802.3af and 802.3at. They should be used with PoE switches (“endspans”) or power injectors (“midspans”) complying with the IEEE 802.3af/IEEE 802.3at specifications.

The iam models are classified in the power level class 0 or class 3. The power consumption with PoE is slightly higher than consumption with a “regular” power supply. When connecting multiple iam cameras to a single PoE switch, verify how much total power the switch can provide and how it handles cases when the limit is exceeded.

Both PoE modes (A and B) are supported by the camera.

Beware of using PoE cameras with 100Mbit Ethernet cables, where the “spare” wire pairs might be omitted. With such cable, the power wouldn't be delivered when using Mode B compatible power sourcing equipment.

Connector and cable description - Case Code A

Connectors

ETH 1: RJ-45
IO: TFM-107-02-L-DH

Ethernet connector

iam is equipped with a standard Ethernet connector, 8P8C modular plug, often also referred to RJ-45.

I/O Connector

14-pin DLP (dual-inline-pin) connector for digital I/O and power input. An adapter cable is available (see Section “Accessories”).

Connector Pinout TFM-107-02-L-DH.pdf	Mates Pinnout SFSD-07-XXX-G-XX.XX-SR
view manufactor information (external link)

Connector and cable description - Case Code A

Connectors

ETH 1: M12-X PHÖNIX 1404741
SACC-DSI-FSX-8CON-PG9-L180 SCO
IO: M12-17P PHÖNIX 1437119
SACC-DSI-MS-17CON-M12 SCO SH
ETH 2: M16-X BINDER
99 4174 90 08 M16-X, 8P, schirmbar, THR, IP67

Ethernet connector

iamIP67 is equipped with one M12-X and one M16-X Ethernet connector.

M12-X - cable connector (matching type)

standard Gigabit Ethernet Connector diverse Vendors, e. g.

M12-X Male cable connector, Contacts: 8, 5.5-9.0 mm, shieldable, cutting clamp, IP67, Binder 99 3787 810 08

M16-X - cable connector (matching type)

M16-X Male cable connector, Contacts: 8, 5.5-9.0 mm, shieldable, cutting clamp, IP67, Binder 99 4171 00 08

I/O Connector

17-pin male M12 connector for digital i/o (optocoupler and TTL inputs/outputs) and power input.

An adapter cable is available (see Section “Cable Assembly”), with D-sub 25-pin female interface connector.

Cable connector: PHÖNIX M12-17P No. 1559644

Cable connector: diverse Vendors, e. g.
PHÖNIX SUBCON No. 2761619

Pinout

Cable Assembly

Case Code A:

This cable is fully shielded.

Case Code C:

GPIO / Trigger / Strobe Interface

Isolated inputs and outputs by optical transformer.

Optocoupler basics

Diagram of basic optocoupler function

An optocoupler is a device using optical path to transfer an electronic signal between two circuits. It basically consists of a photodiode between pin 1 and 2 converting the input signal to light and a phototransistor converting the light again to electronic signal at pin 3 and 4.

The optocoupler is useful in situations where one part of the circuit needs to be galvanically isolated from the other part to prevent damage or unwanted interference. It is used to prevent ground loops or to block voltage spikes.

For effective use of the optocoupler it is important to control it using an independent power supply. When the external circuit is galvanically connected to the camera (eg. when reusing the camera's power to control the optocoupler), the optocoupler's protective function is eliminated.

Due to the schematic characteristic the signal transmitted through an optocoupler interface will be inverted. For details please see schematic below.

Optocoupler parameters summary

Parameter	Input Value	Output Value
Operating voltage	3.3 - 30 V	3.3 - 30 V
Input current	7.5 mA	< 100mA
External resistor requirement	No	Yes, output current must be limited to 100 mA
ON voltage level	> 4.5 V
OFF voltage level	< 1.5 V
OFF to ON delay	< 125 ns	750 ns
OFF to ON rise time (10 to 90%)		1.0-4.0 µs
ON to OFF delay	< 125 ns	2.4 – 25 µs
ON to OFF fall time (90 to 10%)		9.0 – 140 µs
OFF to ON jitter	± 5 ns	± 20 ns
ON to OFF jitter	± 5 ns	± 0.1 µs

Optocoupler inputs

iam is equipped with four optically isolated input lines. One input optocoupler is fully independent, the other three are connected with a common cathode (Section “I/O connector”) due to limited number of pins on the I/O connector. Each input line is protected by a current limiter circuit.

The optocoupler input's logical state is understood as logical 1 if no current is flowing through the optocoupler diode, logical 0 if current is flowing through the diode. See schematic below.

The optocoupler is guaranteed to be switched on (logical 0 input status) when the voltage applied to the input is in range of 3.3 - 30V (tolerance 10%). It is guaranteed to be switched off (logical 1 input status) when the applied voltage is under 2.0V. The input status is undefined between 2V and 3V, the input voltage must not exceed the 30V limit!

The input lines are using fast optocouplers: The propagation time is under 125 ns, for both rising and falling signal edge (assuming input signal with strongly steep edge). The exact switching speed may vary with temperature and the used input voltage level - the listed specifications are the worst case values.

The optocoupler inputs have no protection against wrong polarity. Be sure to connect them always with correct polarity according to the documented wiring diagrams and connector pinouts.

The optocoupler inputs are TTL compatible provided that the signal source is capable of supplying the input current of 7.5 mA.

The optocoupler input lines are equipped with a debounce/deglitch feature to prevent generating unwanted input signals. This feature can be enabled by software e.g. SynView. The delay-time is configurable.

Trigger input

Any of the available optocoupler inputs can be used for triggering. The input line mapping on the camera connectors is described in section Connector and cable description .

Schematic

If the camera serial number has an X or Y in the 9th digit (e.g. 14A2GEBAX2042013) the I/O connector has the Prototype pinout. Expand below!

Expand if the camera serial number has an X or Y in the 9th digit (e.g. 14A2GEBAX2042013)

The schematic of newer cameras I/O interface can be found below.

	File	Modified
Labels No labels Preview View	PDF File opto_in_prototypes.pdf	Jul 07, 2021 by Benjamin Hoffmann (Unlicensed)
Labels No labels Preview View	PDF File opto_in_released.pdf	Jul 07, 2021 by Benjamin Hoffmann (Unlicensed)

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Optocoupler outputs

iam is equipped with three optically isolated output lines. One output optocoupler is fully independent, the other two are connected with a common collector (Section “I/O connector”) due to limited number of pins on the I/O connector.

After power up, the optocoupler outputs are in high impedance state and they remain in that state until reconfigured from the software interface. Automatic reconfiguration at start up can be done by means of user sets.

The optocoupler output's logical state is understood as logical 0 when its output transistor is in high impedance, logical 1 if it is in low impedance mode. See schematic below.

The rising edge (switching to logical 1) propagation time is 750 ns, the falling edge propagation time is under 25 µs. The exact switching speed may vary with temperature and the used input voltage level — the listed specifications are the worst case values.

The optocoupler output work with operating voltage range of 3.3-30 V. The maximal switched output current is 100 mA per optocoupler, higher current could damage the optocoupler output circuit.

Strobe output

Any of the available optocoupler output can be used for strobe control. The output line mapping on the camera connectors is described in section Connector and cable description .

Schematic

If the camera serial number has an X or Y in the 9th digit (e.g. 14A2GEBAX2042013) the I/O connector has the Prototype pinout. Expand below!

Expand if the camera serial number has an X or Y in the 9th digit (e.g. 14A2GEBAX2042013)

The schematic of newer cameras I/O interface can be found below.

SynView Transport Layer Features For IO/Strobe/Trigger

The feature and enum entry names mentioned in the diagram below

The feature and enum entry names mentioned in the diagram below are the names of the XML features, not the names displayed in the SynView Explorer GUI (display names). You may need to look up these names in the Info tab next to the feature tree.

Block Diagram

	File	Modified
Labels No labels Preview View	PDF File opto_out_prototypes.pdf	Jul 07, 2021 by Benjamin Hoffmann (Unlicensed)
Labels No labels Preview View	PDF File opto_out_released.pdf	Jul 07, 2021 by Benjamin Hoffmann (Unlicensed)
Labels No labels Preview View	PDF File opto_out_sw.drawio.pdf	May 15, 2023 by Benjamin Hoffmann (Unlicensed)

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🔍 References

🔗 related content

👥 contact NET

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Input and Output Interface

Introduction

Power supply

DC power input

Power over Ethernet (PoE)

Connector and cable description - Case Code A

Connectors

Ethernet connector

I/O Connector

Connector and cable description - Case Code A

Connectors

Ethernet connector

I/O Connector

Pinout

Cable Assembly

Case Code A:

Case Code C:

GPIO / Trigger / Strobe Interface

Optocoupler basics

Optocoupler parameters summary

Optocoupler inputs

Trigger input

Schematic

Optocoupler outputs

Strobe output

Schematic

SynView Transport Layer Features For IO/Strobe/Trigger

Block Diagram